This paper reports on a shared task involving the assignment of ICD-9-CM codes to radiology reports. Two features distinguished this task from previous shared tasks in the biomedical domain. One is that it resulted in the first freely distributable corpus of fully anonymized clinical text. This resource is permanently available and will (we hope) facilitate future research. The other key feature of the task is that it required categorization with respect to a large and commercially significant set of labels. The number of participants was larger than in any previous biomedical challenge task. We describe the data production process and the evaluation measures, and give a preliminary analysis of the results. Many systems performed at levels approaching the inter-coder agreement, suggesting that human-like performance on this task is within the reach of currently available technologies.
Double contrast computed tomographic scan is a more sensitive test than ultrasound in diagnosing pancreatic injury. The constellation of abdominal pain, an elevated serum amylase and a handlebar mechanism of injury warrants hospitalization and a double contrast abdominal computed tomographic scan.
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